baber/WOPTO huggingface dataset:
Patent GB-458301-A (GB)
Title: Improvements in or relating to clamps
IPC: B25B5/08
Filed: 1936-05-06
Abstract: 458,301. Clamps. TRIER, V. A., 38, Felsham Road, Putney, London. May 6, 1936, No. 12764. [Class 61 (ii)] A carpenters' bench clamp comprises a U-shaped frame A secured to a bench and provided with an end stop B, a jaw C adjustably secured by slots and screws C<2>, C<3> to one side of the frame, a movable jaw F engaging a guide on the other side of the frame so as to be movable in a direction at right angles to the fixed jaw and a cam lever J for actuating the movable jaw mounted on a pivot E. The movable jaw F is guided by means of a slot F<2> therein engaging the pivot E, which also fixes a member G having an edge G<1> bent over the edge of the frame A to hold it steady, the member G having a bent up tongue G<2> engaging the slot F<2> to prevent rocking of the movable jaw about the pivot. A spring K engages the cam lever J to urge the movable jaw into clamping position and an inturned flange on the cam engages a pin F<3> on the movable jaw for retracting it. The jaw edges F<1>, C<1> are faced with vulcanized fabric, brake lining material &c. to increase the grip and prevent damage to the work X.
Patent GB-142869-A (GB)
Title: Improvements in magnetos for internal combustion engines
IPC: F02P1/00
Filed: 1920-05-08
Abstract: 142,869. Schmid, H., and Fuegel, G. July 18, 1917, [Convention date]. Magneto-electric machines.-Comprises details in the framework of ignition magnetos, and also the provision of a special safety spark-gap. The casing comprises back and front parts 2, 3 between which are arranged the base 1 and the fixed polepieces bridged by a dust-cover 5, the whole of which are preferably cast together. The part 3 is provided with two steps 13, 14 adapted to position the distributor gear casing 27 and the distributor plate 30 respectively, the casing 27 being riveted to a bracket 25 formed on the dust-cover 5, and the plate 30 being screwed to the casing 27. A bearing 50 for the distributor spindle 47 is carried in the bracket 25 and comprises a rotatable sleeve having an eccentric aperture for the spindle, whereby fine adjustment of the spindle can be effected. Larger adjustments, to enable the gearwheels to be interchanged for suiting the magneto to engines having different numbers of cylinders, are effected by moving the sleeve 50 in an aperture in an elongated ring 55 mounted in a slot in the bracket 25, and, by reversing the ring 55 in the bracket, to utilize the eccentricity of its aperture. A tapered bolt 53 is inserted either at the top or the bottom of the bracket to secure the parts. The spindle 47 is secured by a cap 48 held by a pin 49. An oil passage passes from the top of the gear casing 27 to the bearing 50, and is closed by a cover 43. The magnets 41 are held only by a metal strip 44 which is pivoted on the pivot of the oil-passage cover 43, so that both can be pressed down by a common spring, and is retained by a screw. The front bearing for the armature spindle is mounted in a member 15 provided on both faces with a partly circular rib, the rib 16 on the front face serving to position the interrupter and the cap 20. The rib 59 on the back face partly encircles one of the insutating- flanges 32 between which the slip-ring 33 is arranged, and forms with the slip-ring a safety spark-gap. An inspection aperture 60 in the base 1 facilitates timing the magneto.
Patent GB-577891-A (GB)
Title: Improvements in or relating to electromagnetic tripping units for controlling the release of bombs or the like from aircraft
IPC: B64D1/04
Filed: 1940-08-10
Abstract: 577,891. Bomb - release apparatus. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and WOODLAND, C. R. Aug. 10, 1940, No. 12823. [Class 9 (ii)] Electromagnetically-operated trip-gear for the release-lever 26 of bomb-release apparatus is mounted in a two-part casing 10, one compartment of which houses the electromagnet 11 with its main armature 18 and safety armature 20, the other compartment containing the operating-spring 24 and release-lever 26, the whole casing being closed by a dust-proof coverplate which seals the first compartment. Before release, the release-lever presses by its incline x against a plunger 28 pressed downwards by a spring 35 acting on toggle-levers 33 which are near the dead-centre position. The main armature 18, pivoted at 19, engages the upper arm of an L-shaped lever 29 pivoted at 30 to the upper end of the plunger 28, and is further retained by a safety-armature 20 pivoted at 21. On energizing the magnet through a spring-contact 14 bearing on a thimble contact 13, the safety-armature is first actuated to free the pin 9 on the armature 18 which then moves away from the upper arm of the lever 29 to release the toggle and free the release-lever. The release causes the stud 39 on the lower arm of the lever 29 to engage the contact 14 to break the circuit through the magnet. The parts are reset by returning the release-lever by pressure on a part 40. For testing purposes, the main armature 18 may be manually operated by a pin 45 on a press-button 42.
Patent GB-761599-A (GB)
Title: Domestic electric water heaters
IPC: F24H1/20
Filed: 1954-05-03
Abstract: 761,599. Electric water heaters. ENGLAND, A. K. May 23, 1955 [May 3, 1954; May 25, 1954], Nos. 12852/54 and 15406/54. Class 39(3) An electric water heater has one outlet for supplying hot, but not boiling water, and another outlet for supplying boiling water. A heater 4 controlled by a thermostat 3 provides the non-boiling water which is contained within a heat insulated storage vessel 1 and is drawn off from a pipe and tap 5, 6, the pipe being provided with a further tap or a hole 7 for adding cold' water when required. Water is boiled by a heater 8 surrounded by a tube 9 open at its lower end and opening at the top into a delivery spout 11; a tube 10 closed at its lower end and open at its upper end ensures that preheated water only flows into the tube 9. A cold water storage vessel 2 for replacing water drawn from the vessel 1 has its water warmed by the jacketing of the vessel 1 by vessel 2. The vessel 1 may be dispensed with, cold water being admitted into the vessel 2 under the control of the user. Boiling water is obtained by switching on the heater 8, which action may simultaneously switch off the heater 4 to reduce total electrical loading. The vessel 1 may be vacuum insulated. According to the first Provisional Specification anoutlet pipe from the hot water region of a hot water storage vessel is fitted with a heating element, energization of the element causing hot water flowing into the pipe to be boiled and ejected by the steam formed.
Patent GB-510283-A (GB)
Title: Improvements in and relating to drive belts
IPC: F16G1/04
Filed: 1938-04-29
Abstract: 510,283. Bands. CUTLER, R. W. April 29, 1938, No. 12866. Drawings to Specification. [Class 109] [Also in Group XXIV] An endless band for driving spinning or twisting spindles consists throughout the major part of its length of selvaged tape made from intercrossed yarns spun from fibres exceeding 1# inches in length and is of a thickness less than .043 and more than .020 inch. The band may be made of synthetic yarn, or may include fine metal wires or may be woven from 16's two-ply cotton warp yarn with thirty picks per inch of 20's two-ply filling or may be made of cotton pre-shrunk by mercerization. The band may be coated or impregnated with a normally non-sticky thermoplastic substance which becomes slightly tacky due to the frictional heat generated in operation, and is resistant to oil and/or moisture, such as cellulose acetate, synthetic resin, bituminous or asphaltic materials and synthetic rubbers of the polymerized chloroprene type. The ends of the band may be skived and stuck down on the band or may be cut to V-points which are then doubled over and secured temporarily by adhesive before the lapped ends are united to the band by stitching, the ends of the band being united by a metal-wire belt fastener of the flexible hinge-joint type. Alternatively the ends are cut to V-points which are united by a lapped seam portion.
Patent GB-180190-A (GB)
Title: Improvements in sun-blinds and the like
IPC: E04F10/06
Filed: 1921-05-05
Abstract: 180,190. Hall, F. J., and Turner, S. May 5, 1921. Window blinds.-Relates to means for adapting an ordinary window blind for use as a sun-blind, and consist of a clamp 1 fixed to the window sash by a screw 5 and carrying an inclined socket 8 into which fits one end of a T-ended rod 9. The blind is drawn through the window frame and has its free end secured to the rod 9 by means of a tassel-cord 17. In a modification, the window blind 13 is replaced by a detachable apron fixed to the roller of an ordinary blind, to the window frame, or to the wall above the window.
Patent GB-970633-A (GB)
Title: Method of preparing acrylonitrile free from acetonitrile
Filed: 1962-04-04
Abstract: 970,633. Purifying acrylonitrile by washing. OSTERREICHISCHE STICKSTOFFWERKE A.G. April 4, 1962 [April 8, 1961], No. 12914/62. Heading B1L. In separating acrylonitrile from mixed gases comprising acrylonitrile, acetonitrile and at least 85% by volume of water-insoluble gases by counter-current extraction with water, there being a maximum of 20 parts by weight of acetonitrile per part of acrylonitrile, performing the extraction at atmospheric pressure and 10-60 C. with an amount of water not greater than T/2 + 3 parts by weight of water per part by weight of acrylonitrile where T is the absorption temperature in degrees C., and recovering acrylonitrile from the acetonitrile-free unabsorbed gases. As shown in the Figure, the products (acrylonitrile, acetonitrile, HCN and insoluble gases) from synthesis apparatus 1 are cooled and passed into a bubble tray column 4 where they are treated according to the invention. The acrylonitrile-containing gases are passed to packed column 5 in which they are contacted with wash water to dissolve acrylonitrile and HCN while insoluble gases leave at V. The solution is passed to separator 8 from which the distillate is passed to a decanter 9 whilst water is returned to column 6. The distillate separates into an upper layer of water-saturated acrylonitrile which is passed to distillation column 10 and a lower acrylonitrile-saturated water which is returned to the separator column. From column 10, HCN is removed at the head while acrylonitrile product is recovered at I. The acetonitrile/acrylonitrile solution from column 4 is passed to separator 12, analogous in function to separator 8 and an upper acetonitrile/acrylonitrile layer is passed from decanter 13 to distillation column 14 in which acetonitrile is separated at III from an acetonitrile/acrylonitrile mixture in which the concentration of the former relative to the latter is less than in the original gas mixture, and returned to column 4 for reprocessing. This avoids the use of a very tall column to separate acrylonitrile and acetonitrile into pure components. In alternative procedures, the acrylonitrile-containing gases from the process of the invention may be washed with water and the solution steam stripped, or subjected to liquid-liquid extraction, or the acrylonitrile may be condensed out. If the. original gas contains ammonia, it may be subjected to acid washing prior to treatment according to the invention.
Patent GB-1420558-A (GB)
Title: Process for preparing gypsum
IPC: C01F11/46
Filed: 1974-03-22
Abstract: 1420558 Gypsum ISHIHARA SANGYO KAISHA Ltd 22 March 1974 [23 March 1973] 12929/74 Heading C1A Gypsum is prepared continuously by neutralizing sulphuric acid with a calcium compound by (a) mixing the calcium compound with a slurry of gypsum seed crystals to form a slurry mixture containing as CaO: CaSO 4 , 2H 2 O in the ratio 0À1-0À01 : 1, (b) continuously feeding the above slurry to a first inlet, and the sulphuric acid to a second inlet spaced from the first, of a reaction vessel (or vessels) in which stirring is effected in a horizontal plane to dilute the slurry mixture and sulphuric acid before contact and (c) continuously removing the overflow of the reaction mixture at a point separated from the inlet of the sulphuric acid at a rate to maintain a total residence time of the reaction mixture in the reaction vessel of 0À3-3 hours and removing the gypsum crystals from the reaction mixture so removed. A plurality of reaction vessels may be connected in series with the gypsum seed crystal slurry feed obtained from the reaction mixture of the preceding vessel. The calcium compound may be calcium carbonate, calcium hydroxide or calcium oxide. The sulphuric acid may be a waste sulphuric acid containing iron from a process for preparing titanium dioxide or a waste pickling acid or a dilute waste acid containing 10-400 g./l. of free H 2 SO 4  and 5-300 g./l. of Fe. The pH of the reaction mixture may be maintained in the range 3À5- 8À5.
Patent GB-1132353-A (GB)
Title: Shaping of polyurethane foams
Inventor: WOOLER ALAN METCALF
IPC: B29C53/00
Filed: 1965-03-26
Abstract: 1,132,353. Moulding foamed polyurethane. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 Feb., 1966 [26 March, 1965], No. 12960/65. Heading B5A. Rigid polyurethane foam is moulded by first heat softening the foam uniformly throughout, using radio-frequency waves (2-3,000,000 megacycles) and then shaping the thus softened foam to the required article. The material may be " over-formed " and allowed to distort to its final shape and the forming operation may be e.g. bending, pressing or embossing. Preferably a laminate comprising a foamed layer self or adhesively-bonded to a plastic layer, e.g. P.V.C., an A.B.S. copolymer, polybutylene, or an halogenated polyolefine, is used. Such a laminate may be made by applying the liquid foaming polyurethane mixture to a release sheet of e.g. thin paper, and permitting the mixture to foam, after which a suitable plastics sheet e.g. an A.B.S. sheet or a P.V.C. fabric is applied and the whole passed through a double belt system to cure the foam.
Patent GB-1143748-A (GB)
Title: A mineral mining installation and a mineral winning machine for use in such an installation
IPC: E21C27/18
Filed: 1966-03-24
Abstract: 1,143,748. Mineral mining installation. GEWERKSCHAFT EISENHUTTE WESTFALIA. 24 March, 1966 [26 March, 1965], No. 12990/66. Heading E1F. In a mineral-mining installation an endless chain 50 extends along the length of a mineral face, is driven at 51, 52 at one or both ends of the face, and meshes with a chain wheel 46 on the face side of a machine 6 reciprocable along the face. The chain wheel 46 is part of a gear train coupled to a rotatable cutter drum 12 mounted on a ram-actuated, vertically swingable arm 42. Haulage of the machine along the face is by a further driven chain wheel 46 at the goaf side of the machine meshing with a fixed chain 60 extending along the face. This second chain wheel 46 is driven from the gear train by a hydraulic, speed regulatable drive 59, 60. A rotary kerfing bar may be mounted to 'be co-axial of the first chain wheel 46, which may be axially displaceable. The machine may be mounted on top of a conveyer 2 along the face side of which one or more ploughs may travel.
Patent GB-876784-A (GB)
Title: Improvements in or relating to magnetic recording arrangements
Inventor: GREER RONALD
Filed: 1958-04-24
Abstract: 876,784. Magnetic recording &c. apparatus; monitoring. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. April 2, 1959 [April 24, 1958], No. 13069/58. Class 40 (2). In a magnetic recording apparatus two control circuits T1, T2 feed a record head by means of separate energizing coils WH1, WH2 thereon connected in aiding relation and each connected in series with coils TR1, TR2, on a transformer, in opposing relation to each other, whereby in the event of failure or malfunction of one of the control circuits a flux is generated in the transformer to energize a third winding TR3 to operate a fault detection circuit FD and inhibit the recording operation or operate an alarm.
Patent GB-322988-A (GB)
Title: Improvements in means for silencing ball cocks and other taps
IPC: G05D16/10
Filed: 1929-04-27
Abstract: 322,988. Walker, A. S. April 27, 1929. Fluids, regulating flow or pressure of. - A device for silencing and reducing pressure in ball cocks and other taps comprises a hollow metal cylinder K with fixing flange A and jointing washers B, and perforated cup-shaped plates G secured within the cylinder bv a perforated screwed cap F. The inlet end of the cylinder K is reduced in diameter to form an annular chamber X with the tail piece 3 of the union for the reception of grit or lead shavings, the water being admitted through lateral openings in the inlet end of the cylinder K. The cup-shaped plates may be assembled in various ways, examples of which are shown in the Figures. Specifications 20841/07 and 5399/15 are referred to.
Patent GB-723519-A (GB)
Title: Wood planing machine or jointer
IPC: B27C1/02
Filed: 1952-09-15
Abstract: 723,519. Planing wood. ROCKWELL MANUFACTURING CO. Sept. 15, 1952 [Sept. 13, 1951]. No. 13212/54. Divided out of 723,474. Drawings to Specification. Class 145. The subject-matter of this Specification is substantially the same as that described in Specification 723,474, which relates to a woodplaning machine having a rotary cutter head, a transversely and angularly adjustable work fence, work tables relatively adjustable to vary the depth of cut, a depth of cut indicator and a pivoted cutter guard, but the description of the work table adjustment means is omitted and the claims differ, the latter being directed mainly to the grouped arrangement of controls and to the adjustment means for the work fence.
Patent GB-1509282-A (GB)
Title: Composite pressure vessel
IPC: F15B1/10
Filed: 1975-04-01
Abstract: 1509282 Hydraulic accumulators FAWCETT ENG Ltd 1 April 1975 [29 March 1974] 13287/75 Divided out of 1509281 Heading F1D A diaphragm assembly for a hydraulic accumulator Fig. 1, comprises a tubular or frustro-conical sleeve 3 to which the outer periphery of the diaphragm 4 is bonded. The sleeve 3 is welded to the two halves of the container 1, 2 at 13, 14. The thickness of the diaphragm varies as shown. Fig. 2, (not shown), illustrates a container of a different shape. In the embodiment shown in Fig. 3, wedgeshaped pieces 34, 35 are welded between the cylindrical member 33 and the frustro-conical mouths of the portions 31, 32 of the container.
Patent GB-132888-A (GB)
IPC: B60B35/10
Abstract: 132,888. Hollis, O. A. Sept. 27, 1918 Mud-guards.-An anglesection mud-guard, of which a portion of the web is shown at 26, is supported by stays 25 connected to members 16 clamped across a bent part of a wheel-axle 17 of a tractor or other vehicle.
Patent GB-133447-A (GB)
IPC: G02B27/34
Abstract: 133,447. Friedrich, C. Oct. 10, 1918. Eyepieces.-Luminous hair-lines are provided in optical and like instruments of precision, for work in subdued light, by suitably deep and narrow grooves in a glass or other transparent disk 6, Fig. 2, and radium-luminous material in the grooves or on the edge of the disk. The invention is described as applied to a telescope. The luminous material may be in powdered form in an annular groove 11, Fig. 3, an abutting ring 12 clamping the disk in place; or it may be placed in one or more symmetrically-disposed recesses 25 in a ring surrounding the disk, Fig. 5, the remaining portions of the disk being preferably silvered; or it may be contained between a bevelled edge of the glass disk and a clamping- ring. A method described for forming the grooves consists in coating the disk with acidresisting material, preferably transparent bakelite, removing a narrow band, say .001 inch wide, and exposing to acid fumes at # inch from the surface, neutralizing the acid by ammoniacal fumes, and washing off the coating, this cycle of operations being repeated till suitable grooves are formed. The times of exposure to the acid are, 5 seconds after the first and second coatings, 10 seconds after the third, 20 seconds after the fourth, fifth, and sixth. Lines capable of emitting light under the action of radium-luminous material may also be formed on the glass disk by deposition, for instance photographically.
Patent GB-133480-A (GB)
IPC: A61C13/20
Abstract: 133,480. Anderton, J., and Anderton, L. Oct. 23, 1918. Casting-machines.-In dental and like casting- machines in which the pressure for forcing the metal into the mould is generated by applying a damp pad thereto, the pad is normally supported at a distance from the mould, but, when released, it automatically and quickly covers the mould. The pad m<2> may be carried by a universal joint m<4> from a sliding rod m normally held by a pin m<5> engaging a sliding latch n. A sliding screen e masks the pad from the heat of the mould until ready for filling; it is then withdrawn, as shown in Fig. 3, by a handle e<2>, a projection e<1> thereon strikes the latch n, and the pad falls. In a modification, the pad is carried by a lever o', Fig. 8, and, when released by withdrawing a pin s, is moved by a spring or weighted lever to cover the mould a, which, in this case, is carried by an adjusting screw w<9>. The pad may be secured to its holder m<3> by a ring w, Figs. 11 and 12, having lugs w<1> to support the pad and lugs w<2> to engage the back of the disk w<3> after passing through notches w<4> therein.
Patent GB-500089-A (GB)
Title: Improvements in bodies for road vehicles
IPC: B62D25/10
Filed: 1938-05-04
Abstract: 500,089. Vehicle bodies. ZAVODY RINGHOFFER-TATRA AKCIOVA SPOLECNOST. May 4, 1938, No. 13351. Convention date, June 3, 1937. Addition to 494,133. [Class 108 (i)] In order to vary the shape of the front part of the vehicle described in the parent Specification a cover 5 therefor is adapted to be made in any desired form and to overlie parts of the mudguards. As shown the vehicle body 1 is extended forwardly to include the box-like part 2 on which the mudguards 3 are fitted. The cover is detachable at its hinges 6.
Patent GB-560235-A (GB)
Title: Improvements in electrolytic processes
IPC: C25C7/02
Filed: 1942-09-23
Abstract: 560,235. Fused-electrolyte processes. GLEAVE, W. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 23, 1942, No. 13385. [Class 39 (iii)] Graphited carbon electrodes employed for electrolysing or heating purposes in fused salt processes are impregnated wholly or in part after formation with alkali metal halides, alkaline earth metal halides, or both, e.g. sodium and calcium chlorides. The impregnation is effected either from an aqueous solution of the salts or from a fusion.
Patent GB-1140395-A (GB)
Title: Improvements in or relating to the production of strip metal by continuous casting
IPC: B22D11/045
Filed: 1966-03-25
Abstract: 1,140,395. Continuous casting. A. WERTLI. 25 March, 1966 [3 May, 1965], No. 13430/66. Heading B3F. In a horizontal continuous casting process for the production of metal strip in which the cooling of the strip is varied across its width means for effecting the cooling action comprise a graphite mould 4 located within a two part cooling jacket 1, 2, the jacket being provided with a plurality of separate U -shaped cooling chambers forming separate cooling zones 8 each zone being supplied with a cooling media. To produce a required cooling effect on a strip the quantity of coolant passing through different zones in the cooling jacket may be varied, or the temperature of the coolant passing through different zones may be varied. A further alternative incorporates the use of different cooling media in different zones to produce a differential cooling effect on the strip. A combination of these alternatives for cooling may be used. Also, the shape of the cooling chambers in the jacket may be different from those depicted in the drawings.